Answer
$1.6,1.2,0.8,0.4,0,-0.4$
Work Step by Step
Formula to calculate the nth term of an arithmetic sequence is: $a_n=a_1+d(n-1)$
Here, $a_1: $ First term and $d=$ common difference
Since, we have $a_1=1.6$
Use a recursion formula to find the remaining five terms.
Then $a_2=a_1-0.4=1.6-0.4=1.2;\\a_3=a_2-0.4=1.2-0.4=0.8;\\a_4=a_3-0.4=0.8-0.4=0.4;\\a_5=a_4-0.4=0.4-0.4=0;\\a_6=a_5-0.4=0-0.4=-0.4$
Hence, the first six terms are: $1.6,1.2,0.8,0.4,0,-0.4$
